BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 19 
rather conspicuous blackish spots or bars on the tips of the feathers of the sides 
of the breast and body. 
According to Mr. Ridgway, Mr. Xantus took the present species at Cape St. 
Lucas in 1859, but it was not separated from B. hypoleucus until 1867. The 
type specimen of craveri is said+ to have come from somewhere near the Isla 
Raza in the Gulf of California, where Dr. Streets found the species breeding in 
1875. It appears to be mainly confined to the Gulf, but, according to Count 
Salvadori, has also occurred off the Pacific coast of Lower California, at-the 
island of Natividad. 
On March 1, 1887, while on his way to Carmen Island, Mr. Frazar found 
Craveri’s Murrelets in considerable numbers near the island of San José, and on 
March 18 they were again met with off the northern end of Espiritu Santo 
Island. Three or four were usually seen together, each group consisting of a 
pair of old birds accompanied by a single young or of two old females and two 
young. Although none of the old females seemed to have more than one 
young each, all of those shot and examined showed two bare incubating spaces 
on the belly. Judging by the size of the young, the eggs from which they had 
been hatched must have been laid early in January and at some spot not far 
from where the birds were found, perhaps, as Mr. Frazar suggests in his notes, 
on a certain “small, round, high rock about an acre in extent opposite the 
island of San José and near the shore of the Peninsula.” 
The early date of breeding established by the capture of these young is a 
matter of surprise, for Dr. Streets obtained an adult female and her set of two 
eggs on Isla Raza (in the Gulf of California) in April, 1875. The eggs were 
‘taken from a crevice of a rock at arm’s length.” They “resemble those of 
the tern, though rather elliptical-ovoid in shape. They differ from each other 
decidedly in the ground-color as well as in the markings. The darkest one is 
brownish-drab, with nearly half of the surface (on the larger end) heavily and 
confluently blotched with reddish-brown and dark brown, with a few neutral- 
tint shell-markings interspersed; the rest of the egg is sparsely sprinkled with 
smaller and more distinct markings of the same color. The ground of the other 
egy is clay-colored, or very pale stone-gray, with markings of the same color as 
before, but less heavy, more distinct, and smaller. There is the same aggrega- 
tion of spots about the larger end, but not so fully carried out, and the rest of 
the surface is more thickly and uniformly flecked than the same portion is on 
the other egg. The darker egg measured 2.05 by 1.40; the other 1.95 by 
1.35. The eggs of the species, as far as we are aware, have not before been 
described.” 2 
1 Salvadori, Zoc. cit. 
2 Bull. U.S. Nat. Mus., no. 7, 1877, 32. 
